Rainbow Rivers: See Gorgeous Maps of the World's Waterways
Rivers of the Pacific Northwest
Washington State's river basins are dominated by the sinuous Columbia River, shown in this map with its tributaries in blue. Around the Puget Sound, a number of smaller rivers and tributaries drain into the Pacific.
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Stephanie Pappas is a contributing writer for Live Science, covering topics ranging from geoscience to archaeology to the human brain and behavior. She was previously a senior writer for Live Science but is now a freelancer based in Denver, Colorado, and regularly contributes to Scientific American and The Monitor, the monthly magazine of the American Psychological Association. Stephanie received a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz.